e982b3314e68c0e70384eb58c0f87908e5fae737a4f6ba72d9f495ca4fdf05b2

Analysis

max time kernel
143s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22/01/2024, 15:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-22_c5e7261dfaf69c44963037c4d44f2419_cryptolocker.exe
Size

50KB
MD5

c5e7261dfaf69c44963037c4d44f2419
SHA1

0b952a2e73e94ab8818e3dac8eb94ed11ff77a75
SHA256

e982b3314e68c0e70384eb58c0f87908e5fae737a4f6ba72d9f495ca4fdf05b2
SHA512

a7f3aa1b36c1cf4ad23e87f5ad9bd4363c96ae57ccf5c730d46501ac3d373cd2a418460a8e2044e1cfdce4dce95bd3fcd5c0fbe816dcd321da224d90384bfbd8
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr42A7n0Fmy7dx:vj+jsMQMOtEvwDpj5HczerLO04y7dx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023135-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023135-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	2024-01-22_c5e7261dfaf69c44963037c4d44f2419_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
4172	misid.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 4172	1600	2024-01-22_c5e7261dfaf69c44963037c4d44f2419_cryptolocker.exe	88
PID 1600 wrote to memory of 4172	1600	2024-01-22_c5e7261dfaf69c44963037c4d44f2419_cryptolocker.exe	88
PID 1600 wrote to memory of 4172	1600	2024-01-22_c5e7261dfaf69c44963037c4d44f2419_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-22_c5e7261dfaf69c44963037c4d44f2419_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-22_c5e7261dfaf69c44963037c4d44f2419_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4172

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
50KB

MD5
3fcc46f6f332d2c0a1e9e9d5ed207de3

SHA1
a60dda454d4a8ee2e23689f2f4014a0bad35204e

SHA256
d5a673a1b6c1216c81a4c9b04ceba544baa76c0aba4dd2d95f3c1f5eef827617

SHA512
5b20b35ac4b2f4750d599947b3183103e8b4de5fff5af818aab60aa01d7de2ac3c18324b9781b3229bcf854801f8ee91c7f2eb26eb03cd2ac8103cda1aa04964

Download Submit
memory/1600-0-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/1600-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/1600-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/4172-17-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4172-23-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download